190807 has 2 divisors, whose sum is σ = 190808. Its totient is φ = 190806.

The previous prime is 190793. The next prime is 190811. The reversal of 190807 is 708091.

It is a strong prime.

It is an emirp because it is prime and its reverse (708091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190807 is a prime.

It is a super-2 number, since 2×190807² = 72814622498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95403 + 95404.

It is an arithmetic number, because the mean of its divisors is an integer number (95404).

2¹⁹⁰⁸⁰⁷ is an apocalyptic number.

190807 is a deficient number, since it is larger than the sum of its proper divisors (1).

190807 is an equidigital number, since it uses as much as digits as its factorization.

190807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 190807 is about 436.8146059829. The cubic root of 190807 is about 57.5702481060.

Adding to 190807 its reverse (708091), we get a palindrome (898898).

The spelling of 190807 in words is "one hundred ninety thousand, eight hundred seven".